Roofing



March 142 1945. A. .w EMOE LER 2;s;7@1;.:1;s0

ROOFING Filed --Dec. 8, 1942 flZbert WMoeZZer- IN V EN TOR.

A'ITCI R N EYE Patented Mar. 13, 1945 UNITED STATES, PATENT. OFFICE My invention relates to building roofs, and has among its objects and advantages the provision of an improved covering which may beimade up in units to simulate a shingled roof when laid, in which the construction is such as to provide effective protection against the entrance of moisture, with the elements so formed as to resist the entrance of wind which frequently tear wood or composition shingles oil the roof, and in which the elements are designed with a view to facilitating manufacture thereof from material such as present day plastics, synthetic resins and the like.

In the accompanying drawing:

Figure 1 is a sectional view of a portion of a roof structure in accordance with my invention.

Figure 2is a fragmentary plan view.

Figure 3 is a perspective view of one of the roof ing elements, and

Figure 4 is a sectional view illustrating a modifled form of element.

In the embodiment of the invention selected for illustration, Figure 3 illustrates a rooflng element III of rectangular contour and provided with a depending flange l2. at its butt end. The element is provided with a shoulder I4 paralleling the flange I2 and spaced upwardly therefrom a predetermined distance, the spacing determining the amount that the respective courses of shingles are exposed to the weather. The body of the element tapers uniformly from the shoulder It to its top edge l6, and the butt area I8 also tapers slightly in the same direction.

The lower face 20 is devoid of shoulders but is slightly bowed about an axis extending transversely of the shingle. In' Figure 1, the first course 22 is laid on theroof structure 24 and the fourth inches from the shoulder M to the outer face of the flange I2. In view of the slightly concaved faces 20, the bend between the flanges l2 and the exposed areas 22 are caused to have firm engagement with the intersecting faces defining the shoulders I4. The weather edges are securely locked or held against separation by heavy winds and preclude the entry of hail, sleet and rain. The plastic shingles are shatterproof with respect to wind and hail storms. The shingles are devoid of any tendency to curl and will last indefinitely,

both in appearance and wearing ability.

shingles in the course are secured, as by nails 26,

although the shingle elements may be cemented to the roof structure. The flanges l2 of the lowermost course are arranged in abutting engagement with the straight edge 21 of the roof structure. After laying of the first course, no further guides or straightedges are required, since the successive courses are laid with their flanges l2 abutting the respective shoulders i l, but with the shingles in the alternate courses offset so as to stagger the joints. Thus the shingles may be laid rapidly and accurately, with the spacing in accordance with the best usage. In addition, the elements In are of such length vertically as to provide a roof covering made up of three shingle thicknesses. Each course is therefore covered in part by two other courses.

In a shingle element, formed of plastic, I prefer to make the element about sixteen inches in vertical length, with an exposure of flve and one-.

Composition roofs are not at all suitable in communities subjected to high winds and large hail. Sheet metal roofs are also damagedby hail and are costly to maintain. The plastic shingle embodiesan element of resiliency which resists breakage incident to strong winds and large hail.

Figure 4 illustrates a construction similar to Figure 3 with the exception that the shoulders 28 are angled upwardly and the flanges 30 are correspondingly shaped to hook underneath the shoulders 28.

Without further elaboration, the foregoing will so fully explain my invention, that others may, by applying. current knowledge, readily adapt the samefor use under various conditions of service.

I claim:

1. In a roofing shingle, a resilient body having a gradually increasing taper from its inner end to a shoulder line short of the outer or butt end and an extension portion exposed to the weather of approximately uniform thickness from the shoulder line to the butt end, a down turned flange formed at the butt end of the body and exposed to the weather, the said extension portion and flange being of a thiclmessapproximately corresponding to that of the reduced inner end of the body, the increased thickness at the shoulder line providing a shoulder rising from the body parallel with and facing the edge at the butt end, said body being cambered upwardly lengthwise thereof.

2. In a roofing shingle, a plastic body having a gradually increasing taper from itsinner end to a shoulder line short of the outeror butt end and an extension exposed to the weather of reduced thickness extending from the shoulder line to the butt end, a down turned flange formed at the butt end of the body and exposed to the weather, the said extension and flange being of a thickness approximately corresponding to that of the reduced inner end of the body, the increased thickness at the shoulder line providing a shoulder rising from the body parallel with and facing the edge thereof at the butt end, said body being cambered upwardly lengthwise thereof. 7

ALBERT W. MOELLER. 

